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F,, 1MONITORING WELL SAMPLING DATA <br /> Project Name: Former Vintage Carwash Project Number: 59183-06-02 ' <br /> Well No.: MW-3 Date: 03/17/09 <br /> Well Diameter: 4 in. Field Personnel: JJE/MOB ' <br /> Casing Length: 75 ft. Screened Casing Length:25 ft. <br /> Well Elevation: 10.88 feet above MSL ' <br /> PURGE CHARACTERISTICS ' <br /> Water Depth Before Purging: 27.84 ft. 2 in=.1632 Gal/ft. 4 in=.6528 Gal/ft. <br /> Calculated Water Column Volume: 30.79 gal. Volumes Purged: 3.0 ' <br /> Start Purging Time: 1005 End Purging Time: 1044 <br /> Total Time: 39 min. Flow Gauge: to , <br /> Total Volume Purged: 92.5 gal. Avg.Flow Rate: 2.4 gpm <br /> Water Depth After Purging: Time: ' <br /> Dissolved Oxygen: 0.10 mg/1 Free Product: (N); Thickness: <br /> SAMPLING CHARACTERISTICS <br /> Purging Method: Deep Submersible Pump Sampling Method: Disposable Bailer , <br /> Laboratory Analysis:Acetone,Bromate,CrVI <br /> TIME TEMPERATURE CONDUCTIVITY pH Gallons ' <br /> (°C) (umhos/cm) Purged <br /> 1018 21.1 1,161 6.89 31 ' <br /> 1031 22.2 1,349 6.73 62 <br /> 1044 21.8 1,363 6.64 92.5 ' <br /> 1055 Sample ' <br /> Comments: Clear with strong odor. ' <br /> Duplicate labeled MW-12 sampled at 1045 ' <br /> _ 1 <br />